Finding the Third Proportional to 288,954 and 383,411.25

Step by Step Solution

1. Step 1: Write the proportion equation
   288,954 : 383,411.25 = 383,411.25 : x
2. Step 2: Convert to fraction form
   288,954/383,411.25 = 383,411.25/x
3. Step 3: Cross multiply
   288,954x = 383,411.25 × 383,411.25
4. Step 4: Simplify right side
   288,954x = 147,004,186,626.56
5. Step 5: Solve for x
   x = 147,004,186,626.56/288,954
6. Step 6: Final answer
   x = 508,745.98